var GPBcakgroundLayer = cc.Layer.extend({
	ctor : function(){
		this._super();
		this.initBackground();
	},
	initBackground : function(){
		this._sptBg = new cc.Sprite("##bg01.png");
		this._sptBg.attr({
            x: GC.w_2,
            y: GC.h_2
        });
        this.addChild(this._sptBg);
	}
});